Originally Posted by
rousseau
The guys at Crappy Tire suggested I try soldering a nut to one of the bolts that I've inserted into the brake bosses, into which I could screw a long bolt to act as a lateral truing guide. Great idea, but either my soldering skills are lacking (very possibly true) or the cheap solder I used was crap or the cheap soldering gun I used wouldn't get hot enough to liquify the solder long enough for the nut to be seated properly. So that didn't work.
Not anywhere nearly enough heat to get the bolt & nut hot enough for the solder to wick. Don't make it so complicated, just drill a hole laterally through the fork-legs at the correct height to line up with the rim and stick a nail through. Or you can also tap the hole for a screw; the metal's thick enough to make threads.